Pedal.



A. W. LAWSON.

PEDAL.

APPLICATIQN FILED JAN. 5. 1918.

Rimmed. Nov. 5, 1918.

j H W H 101 H LFREDW- Lawson:

j, UrrEn ALFRED W. LAWSON, 0F GREEN BAY, WISCONSIN.

PEDAL.

aetitia.

specification of Letters Patent.

Patented Nov. il'lilld.

*lpplication filed January 5, 1918. Seria1No.210,579.

To all whom it may concern:

Be itknown that I, i-XLFRED \V. Lawson, a citizen of the United States,residing at. Green Bay. in the county of Brown and State of lVisconsin,have invented certain new and useful Improvements in Pedals, of whichthe following is a specification, reference being had to theaccompanyinr drawings.

This invention relates to certain improvements in pedals and hasrelation more particularly to a device of this general characterespecially designed and adapted for use in connection with a rudder barof an acroplane, and it is an object of the invention to provide adevice of this character provided with novel and iinprov'ed meanswhereby the same may be caused to move with a minimum of frictionalresistance.

Furthermore it isan object of the invention to provide a n ovel andimproved pedal connected at its toe portion with a rudder bar or thelike and provided at its heel portion with an anti-friction memberadapted to engage and travel over a surface adjacent the rudder barwhereby an effective support 'is aiforded for a foot.

The invention consists in the details of construction and in thecombination and arrangement of the several parts of my improved'pedalwhereby certain important advantages are attained and the devicercudercd simpler, less expensive and, otherwise more convenient andadvantageous for use.

bodiment of my invention, the coacting endportion of the rudder barbeing indicated by dotted lines; and Y Fig. 2 is a view in cross sectiontaken through the heel portion of my improved pedal as herein embodied.

As disclosed in the accompanying drawings 1 denotes a pedal of a slipperformation and which is adapted to snugly receive the foot of an aviatoror the like. The toe portion of the pedal is engaged as indicated at 1with an end portion of'a rudder bar R of a type employed in connectionwith aeroplanes. Depending from the heel portion of thepedal is thetubular body or sleeve 2 cyhndrical in form and provided at its upperend with the flange 3 to afford means whereinturning' the lower marginalportion of the body or sleeve 2 so as to overlie the antilriction memberor ball 5 below the center thereof.

The anti-ij'riction member or ball 5 rides upon a plate or other surfaceincluded in an aeroplane structure and positioned adjacent the rudderbar It. It will be perceived that as an operator forces an end portionof the rudder bar to effect a steering operation the heel portion of thepedal P will ride over such plate or other surface with a minimum offrictional resistance and at the same time permitting a universalmovement of the heel portion of the pedal. At the same time it. will benmh-rstood that by having the antifriction member or ball 5 carried bythe pedal and in contact with the surface S. a support is afforded forthe foot and Which is of a decided advantage in use especially as relateto increasing the comfort of the operator.

From the foregoing description, it is thought to be obvious that a pedalconstructed in accordance with my invention is particularly well adaptedfor use by reason of the convenience and facility With which it may beassembled and operated and it Will also be obvious that my invention issusceptible of some change and modification without departing from theprinciples and spirit thereof and for this reason I do not wish to beunderstood as limiting, myself to the precise arrangement and formationof the sev' eral parts herein shown in carrying out my invcntion inpractice except as hereinafter claimed.

I claim:

1. In combination with an operating member traveling in a plane above asurface. a pedal operatively connected to said movable member, and ananti-friction member car- .within the body or sleeve 2 b v*cri1npin;r orp mitting anti-friction member ried by the pedal and riding upon thesurface and permitting a universal movement of the heel portion of thepedal.

2. In combination 'with an operating member traveling in a plane above asurface, a pedal ope 'atively connected at its toe portion to themember, and an anti-friction member carried by the heel portion of thepedal and riding upon the surface and permitting a universal movement ofthe heel portion of the pedal.

3. In combination with an operating member traveling in a plane above asurface, a pedal operatively connected at its toe portion to the member,a sleeve depending from the heel portion of the pedal, and a ballloosely mounted in the lower end of the sleeve and riding upon thesurface and pera universal movement of the heel portion of the pedal.

4. In combination with an operating memher, a pedal operativelyconnected at its toe portion to tl1e operating member, and an carried bythe heel por- "for operatively connecting the same to an OPOIZItIIIgmember,

and an anti-friction member carried by the heel portion of the pedal andserving as a support therefor, said antifriction member also permittinguniversal movement of the heel portion of the cdal. In testimony whereofI hereunto afhx my signature in the presence of two witnesses.

ALFRED W. LAWSON. \Vitncsses W. E. LAWTON, G. E. LEWIS.

